<template>
  <div
    class="hamburger-container"
    style="padding: 0 15px"
    @click="toggleClick"
  >
    <svg
      :class="{'is-active': isActive}"
      class="hamburger"
      viewBox="0 0 1024 1024"
      xmlns="http://www.w3.org/2000/svg"
      width="64"
      height="64"
    >
      <path d="M408 442h480c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8H408c-4.4 0-8 3.6-8 8v56c0 4.4 3.6 8 8 8zm-8 204c0 4.4 3.6 8 8 8h480c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8H408c-4.4 0-8 3.6-8 8v56zm504-486H120c-4.4 0-8 3.6-8 8v56c0 4.4 3.6 8 8 8h784c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8zm0 632H120c-4.4 0-8 3.6-8 8v56c0 4.4 3.6 8 8 8h784c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8zM142.4 642.1L298.7 519a8.84 8.84 0 0 0 0-13.9L142.4 381.9c-5.8-4.6-14.4-.5-14.4 6.9v246.3a8.9 8.9 0 0 0 14.4 7z" />
    </svg>
  </div>
</template>

<script lang="ts">
import { defineComponent } from 'vue'

export default defineComponent({
  name: 'Hambuger',
  props: {
    isActive: {
      type: Boolean,
      default: false
    }
  },
  // vue3新增 emits选项
  // 1.起到声明的作用 让你知道当前组件  会emit出去哪些事件
  // 2.可以对emit的参数进行效验 通过就可以emit出去 否则不能emit
  // 具体使用说明看文档 https://v3.cn.vuejs.org/api/options-data.html#emits
  emits: ['toggleClick'], // vue3 emits声明列表
  setup (props, { emit }) {
    const toggleClick = () => {
      emit('toggleClick')
    }

    return {
      toggleClick
    }
  }
})
</script>

<style lang="scss" scoped>
  .hamburger-container {
    line-height: 46px;
    height: 100%;
    float: left;
    cursor: pointer;
    transition: background .3s;
    -webkit-tap-highlight-color: transparent;
    &:hover {
      background: rgba(0, 0, 0, .025);
    }
  }
  .hamburger {
    display: inline-block;
    vertical-align: middle;
    width: 20px;
    height: 20px;
  }

  .hamburger.is-active {
    transform: rotate(180deg);
  }
</style>
